Rail fob street-railroads



NITEI) STATES PATENT OFFICE.

JOHN B. HENCK, OF BOSTON, MASSACHUSETTS.

RAIL FOR STREET-RAILROADS.

Specification of Letters Patent No. 19,992, dated April 20, 1858.

yTo all whom it may concer/n.:

Be it known that I, J. B. HENCK, of Boston, in the county of Suifolk and State of Massachusetts, have invented certain new and useful Improvements in Cast-Iron Rails for Horse-Railroad Tracks, &c., and that the following description, taken in connection with the accompanying plate of drawings, hereinafter referred to, forms a full and exact specification of the same, wherein I have set forth the nature and principles of my said improvements by which my invention may be distinguished from others of a' similar class, together wit-h such parts as I claim and desire to have secured to me by Letters Patent.

The figures of the accompanying plate of drawings represent my improvements.

Figure l is a side elevation showing the ends of two rails at the joint. Fig. 2 is a transverse vertical sect-ion taken in the plane l of the line A B, Fig. l. Fig. 3 is a plan or top view showing the lap, &c., on one end of the' rail.

The obj ect of my improvements is to form the joint for uniting the ends of the rails in such a manner as to prevent either rail from rising, falling or moving in veither lateral directions and to lock the rails rig'- idly together.

a w-Zn o represent the two rails to be united. On the end of the rail a a is formed a projecting lap c c with dovetail d formed thereon. The lap c c fits under theprojecting portion f f of the rail b b in'which p0rtion f f is formed a mortise g into which the dovetail Z tits. It will thus be seen that /the lap joint will prevent the rails from rising or falling while the dovetailed dowel prevents the rails from moving in leither 40 lateral direction.

My improvements are peculiarly applica` cast separately and independent of the lap c, it could not possess the requisite strength and would soon be broken.

Having thus described my improvements I shall state my claim as follows:

What I claim as my invention and desire to have secured to me by Letters Patent, is

In a cast-iron rail the combination of the supporting lap and dovetailed dowel, the said dovetail being cast on the said lap as set forth, whereby the rails are rigidly locked and prevented from rising or falling or moving in either lateral direction.

JNO. B. HENOK. Witnesses JOSEPH GovETT, ALBERT W. BROWN.- 

